The Influence of Thermal Erosion at River Bed Deformation in Permafrost Areas
The study is focused on the deformations caused by the impact of water flow in a river channel composed of meltable permafrost bed materials. It is based on the results of laboratory and mathematical simulation. The results of numerical calculations are compared with data of laboratory and field obs...
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American Society of Civil Engineers (ASCE)
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ftrudnuniv:oai:repository.rudn.ru:r/76193 2023-05-15T17:55:44+02:00 The Influence of Thermal Erosion at River Bed Deformation in Permafrost Areas Debolskaya E. Debolskiy V. Maslikova O. Gritsuk I. Ivanov A. https://repository.rudn.ru/records/article/record/76193/ EN eng American Society of Civil Engineers (ASCE) https://doi.org/10.1061/9780784483589.002 https://repository.rudn.ru/records/article/record/76193/ Permafrost 2021: Merging Permafrost Science and Cold Regions Engineering - Proceedings of the Regional Conference on Permafrost 2021 and the 19th International Conference on Cold Regions Engineering Deformation Flow of water Heat transfer Rivers Sediment transport Bed deformation Bed materials Field observations Laboratory simulation Mathematical simulations Numerical calculation Permafrost area River bed River channels Thermal erosion Permafrost Article ftrudnuniv https://doi.org/10.1061/9780784483589.002 2022-01-03T09:51:06Z The study is focused on the deformations caused by the impact of water flow in a river channel composed of meltable permafrost bed materials. It is based on the results of laboratory and mathematical simulation. The results of numerical calculations are compared with data of laboratory and field observations. The study shows that a comprehensive and adequate model of river channel deformations should take into account not only ablation, but also other factors, including heat transfer in the soil, sediment transport, and bank slope collapses. Experiments in a hydraulic flume were good enough to reproduce the effect of delayed collapse, consisting in nonsimultaneous impacts of channel-forming rock melting and a freshet. The major factors that have an effect on channel transformations in permafrost-zone rivers are identified. © 2021 American Society of Civil Engineers. Article in Journal/Newspaper permafrost Peoples' Friendship University of Russia (RUDN): Open repository Permafrost 2021 14 26 |
institution |
Open Polar |
collection |
Peoples' Friendship University of Russia (RUDN): Open repository |
op_collection_id |
ftrudnuniv |
language |
English |
topic |
Deformation Flow of water Heat transfer Rivers Sediment transport Bed deformation Bed materials Field observations Laboratory simulation Mathematical simulations Numerical calculation Permafrost area River bed River channels Thermal erosion Permafrost |
spellingShingle |
Deformation Flow of water Heat transfer Rivers Sediment transport Bed deformation Bed materials Field observations Laboratory simulation Mathematical simulations Numerical calculation Permafrost area River bed River channels Thermal erosion Permafrost Debolskaya E. Debolskiy V. Maslikova O. Gritsuk I. Ivanov A. The Influence of Thermal Erosion at River Bed Deformation in Permafrost Areas |
topic_facet |
Deformation Flow of water Heat transfer Rivers Sediment transport Bed deformation Bed materials Field observations Laboratory simulation Mathematical simulations Numerical calculation Permafrost area River bed River channels Thermal erosion Permafrost |
description |
The study is focused on the deformations caused by the impact of water flow in a river channel composed of meltable permafrost bed materials. It is based on the results of laboratory and mathematical simulation. The results of numerical calculations are compared with data of laboratory and field observations. The study shows that a comprehensive and adequate model of river channel deformations should take into account not only ablation, but also other factors, including heat transfer in the soil, sediment transport, and bank slope collapses. Experiments in a hydraulic flume were good enough to reproduce the effect of delayed collapse, consisting in nonsimultaneous impacts of channel-forming rock melting and a freshet. The major factors that have an effect on channel transformations in permafrost-zone rivers are identified. © 2021 American Society of Civil Engineers. |
format |
Article in Journal/Newspaper |
author |
Debolskaya E. Debolskiy V. Maslikova O. Gritsuk I. Ivanov A. |
author_facet |
Debolskaya E. Debolskiy V. Maslikova O. Gritsuk I. Ivanov A. |
author_sort |
Debolskaya E. |
title |
The Influence of Thermal Erosion at River Bed Deformation in Permafrost Areas |
title_short |
The Influence of Thermal Erosion at River Bed Deformation in Permafrost Areas |
title_full |
The Influence of Thermal Erosion at River Bed Deformation in Permafrost Areas |
title_fullStr |
The Influence of Thermal Erosion at River Bed Deformation in Permafrost Areas |
title_full_unstemmed |
The Influence of Thermal Erosion at River Bed Deformation in Permafrost Areas |
title_sort |
influence of thermal erosion at river bed deformation in permafrost areas |
publisher |
American Society of Civil Engineers (ASCE) |
url |
https://repository.rudn.ru/records/article/record/76193/ |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Permafrost 2021: Merging Permafrost Science and Cold Regions Engineering - Proceedings of the Regional Conference on Permafrost 2021 and the 19th International Conference on Cold Regions Engineering |
op_relation |
https://doi.org/10.1061/9780784483589.002 https://repository.rudn.ru/records/article/record/76193/ |
op_doi |
https://doi.org/10.1061/9780784483589.002 |
container_title |
Permafrost 2021 |
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14 |
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26 |
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1766163711672713216 |